His calculator does many operations but the formula hasn't been explicitated from his code (I tried once but didn't achieved this tedious task ). Anyway he's okay with sharing his calculator so you just have to ask him

He must be on vacation currently. Send me a personnal message with your e-mail adress (or send a mail directly to gauthier.nottret@edu.esiee.fr), I will send you the calculator.

On North and South views, something looks weird to me (see attached picture).By the way, your coach is aligned for current versions of pak128 but you will have to lower it by 4 pixels for the next release of pak128.

My coach doesn't float on the pak128 version 2.3.0.New version makes an old train a high-tech maglev But the nightly version doesn't work with my PC.I'll have to modify addons before stable version is released!

Certainly, it is not useful to have many similar types of coach in the simulation.And it is not flavorful to have only one type of it in the composition.So, I narrowed down the types to two, Az and Bz.

I release the E656 player-colouredas I haven't made the locomotive matching the period yet.

E656 is already very nice, although it got many details and looks messy, you can make details and lines smoother. Here is an attached example of what I am saying. I smoothed some parts, especially the red part. You can also make player color parts smoother, using darker shades next to dark colors and brighter shades next to bright colors.

This problem happens quite often, light level of different colors are not 100% consistent.

Anyway, your loc is much nicer now, you can also smooth between black and bright parts of the bogies, and even pantographs although is much more difficult. You can also play with player color brightness around windows, but in this case you might need to take some pixels of the windows themselves. In such case, your vehicle could look weird at night. It's up to you to choose what to do with windows.

Here is an example, from my train addons, of a player color smoothing near windows. You can download the source files and take a look at the source image.